Zinc coated mild steel is usually applied to protect the substrate surface from corrosion. In this study, Zinc Oxide nanostructure layer will be used to protect the surface of mild steel from corrosion. The Zinc Oxide nanostructure will be synthesized by sol-gel method. After the solution was prepared, it then coated on mild steel surface using spin coater and anneal at different temperature to see the growth of Zinc Oxide nanostructures. After the sample has been coated it will characterize using FESEM, XRD and LPR.

In this study, ZnO nanostructures were synthesized on porous silicon (PSi) substrate using hydrothermal immersion method. Different post-annealing temperatures were varied from 300°C to 600°C. Surface morphology was studied by field emission scanning electron microscopy. It shows that a better shape was produce at annealing temperatures of 500°C. Structural studies of ZnO nanostructure were implemented using X-ray diffraction grating. The result shows post-annealing can influence the crystallinty of ZnO. Photoluminescence spectra were used to study the optical properties of ZnO nanostructure. The result shows that peak corresponds to ZnO nanostructures are appeared in UV range. Besides, broad peaks are also appeared in visible range which is attributed to structural defects and PSi substrate.

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The conducting polymer nanocomposites of acrylate/carbon nanotubes were coated on mild steel to investigate corrosion performance for coating application. Corrosion protection performance of acrylate/carbon nanotubes nanocomposites thin film coating was determined by immersed in 3.5 % sodium chloride. Carbon nanotubes with various weight percentages (0.2 %, 0.4 %, 0.6 %, 0.8 % and 1.0 %) blending into acrylate and deposited on mild steel by using sol-gel method. Atomic force microscope (AFM) and electrochemical impedance spectroscopy (EIS) was used to determine the surface morphology and corrosion protection of mild steel immersed in 3.5 % of sodium chloride, (NaCl) that coated by acrylate/carbon nanotubes nanocomposites thin film as an inhibitors for corrosion protection.